Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import android.annotation.TargetApi;
import android.opengl.EGL14;
import android.opengl.EGLConfig;
import android.opengl.EGLContext;
import android.opengl.EGLDisplay;
import android.opengl.EGLSurface;

import android.opengl.GLES20;
import android.os.Build;

public class Main {
    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
    private static int getMaxTextureEgl14() {
        EGLDisplay dpy = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
        int[] vers = new int[2];
        EGL14.eglInitialize(dpy, vers, 0, vers, 1);

        int[] configAttr = { EGL14.EGL_COLOR_BUFFER_TYPE, EGL14.EGL_RGB_BUFFER, EGL14.EGL_LEVEL, 0,
                EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT, EGL14.EGL_SURFACE_TYPE, EGL14.EGL_PBUFFER_BIT,
                EGL14.EGL_NONE };
        EGLConfig[] configs = new EGLConfig[1];
        int[] numConfig = new int[1];
        EGL14.eglChooseConfig(dpy, configAttr, 0, configs, 0, 1, numConfig, 0);
        if (numConfig[0] == 0) {
            return 0;
        }
        EGLConfig config = configs[0];

        int[] surfAttr = { EGL14.EGL_WIDTH, 64, EGL14.EGL_HEIGHT, 64, EGL14.EGL_NONE };
        EGLSurface surf = EGL14.eglCreatePbufferSurface(dpy, config, surfAttr, 0);

        int[] ctxAttrib = { EGL14.EGL_CONTEXT_CLIENT_VERSION, 2, EGL14.EGL_NONE };
        EGLContext ctx = EGL14.eglCreateContext(dpy, config, EGL14.EGL_NO_CONTEXT, ctxAttrib, 0);

        EGL14.eglMakeCurrent(dpy, surf, surf, ctx);

        int[] maxSize = new int[1];
        GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, maxSize, 0);

        EGL14.eglMakeCurrent(dpy, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
        EGL14.eglDestroySurface(dpy, surf);
        EGL14.eglDestroyContext(dpy, ctx);
        EGL14.eglTerminate(dpy);

        return maxSize[0];
    }
}